Wenatchee, Washington / Bing Cherry

Total GDD: 2782 (Jul 15)

Day 118 / 118 (100%)

Current Season

Total GDD: 2782 (Jul 15)

Method: 41°F

7-Day Daily Avg: 40.3

7-Day Projection: 3064 by Jul 22

Season: Mar 20, 25 - Jul 15, 2025

Key Freeze Dates (32°F)

Last Freeze:
10%: 03-19
50%: 04-07
90%: 04-21

First Freeze:
10%: -- (rarely occurs)
50%: -- (rarely occurs)
90%: -- (rarely occurs)

Growing Degree Days (GDD) track heat accumulation to predict when plants reach growth stages, pests emerge, and diseases become active.

Thresholds mark specific GDD values when events typically occur, with crossing dates showing when your season reaches each milestone.

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Thresholds & Notes

Dormancy Break 150 °D

Apr 3, 2025 | Apr 3, 2024 | Apr 9, 2023 | Apr 2, 2022

Growth Stage

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Oil application window closing. Begin frost protection monitoring.

First White 280 °D

Apr 15, 2025 | Apr 14, 2024 | Apr 24, 2023 | Apr 22, 2022

Growth Stage

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Critical frost sensitivity begins. Deploy wind machines/sprinklers.

Full Bloom 380 °D

Apr 22, 2025 | Apr 19, 2024 | Apr 29, 2023 | Apr 30, 2022

Growth Stage

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Peak pollination. Bee activity critical. Brown rot spray timing.

Petal Fall 480 °D

Apr 27, 2025 | Apr 27, 2024 | May 3, 2023 | May 6, 2022

Growth Stage

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First cover spray. Cell division phase begins. Thinning decisions.

Shuck Split/Fall 650 °D

May 6, 2025 | May 10, 2024 | May 11, 2023 | May 20, 2022

Growth Stage

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Powdery mildew protection critical. Fruit sizing begins.

Straw Color 950 °D

May 21, 2025 | May 23, 2024 | May 21, 2023 | Jun 5, 2022

Growth Stage

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Final fruit sizing. Begin sampling for maturity. Irrigation critical.

First Blush (Mahogany) 1400 °D

Jun 7, 2025 | Jun 12, 2024 | Jun 6, 2023 | Jun 24, 2022

Growth Stage

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Early varieties (Chelan) harvest ready. Bird control essential.

Commercial Harvest - Rainier 1850 °D

Jun 20, 2025 | Jun 29, 2024 | Jun 21, 2023 | Jul 9, 2022

Growth Stage

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12-14% soluble solids minimum. Row/firmness testing 2x daily.

Commercial Harvest - Bing 1900 °D

Jun 22, 2025 | Jul 1, 2024 | Jun 23, 2023 | Jul 11, 2022

Growth Stage

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Color >60% blush. Handle with extreme care. Premium market timing.

Late Variety Harvest 2200 °D

Jun 30, 2025 | Jul 9, 2024 | Jul 2, 2023

Growth Stage

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Skeena/Sweetheart window. Post-harvest deficit irrigation begins.